Nissan Leaf. Manual - part 1226

B2814 QUICK CHARGE RELAY

VC-71

< DTC/CIRCUIT DIAGNOSIS >

D

E

F

G

H

I

J

K

L

M

A

B

VC

N

O

P

B2814 QUICK CHARGE RELAY

DTC Logic

INFOID:0000000010121254

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

1. Perform quick charging for 10 seconds or more.

2. Turn power switch ON.

3. Check “Self-diagnosis result” of “CHARGER/PD MODULE”.
Is DTC detected?

YES

>> Proceed to 

VC-71, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010121255

1.

CHECK 12V BATTERY NEGATIVE CABLE ON PDM (POWER DELIVERY MODULE) SIDE (1)

1. Turn power switch OFF.

2. Check the installation of 12V battery negative cable on PDM

(Power Delivery Module) side .

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace 12V battery negative cable on PDM (Power Delivery Module) side connection.

2.

CHECK 12V BATTERY NEGATIVE CABLE ON PDM (POWER DELIVERY MODULE) SIDE (2)

Check the continuity between 12V battery negative cable on PDM (Power Delivery Module) side and ground.

Is the inspection result normal?

DTC

CONSULT display

(Malfunction type)

DTC detection condition

Possible causes

B2814

QUICK CHARGE RELAY
(Signal stuck high)

• When the quick charge relay is ON, the termi-

nal voltage in the quick charge relay drive cir-
cuit is 4.69 V or more continually for 3 seconds 
or more.

• When the quick charge relay is ON, the high 

voltage circuit voltage that is input from the 
quick charge sensor is 60 V or more continu-
ally for 1 second or more.

• Harness and connector

[PDM (Power Delivery Module) 
ground circuit is open.]

• PDM (Power Delivery Module)

: 12V battery positive cable

ALCIA0137ZZ

+

−

Continuity

PDM

(Power Delivery Module)

Connector

Terminal

F32

51

Ground

Existed

VC-72

< DTC/CIRCUIT DIAGNOSIS >

B2814 QUICK CHARGE RELAY

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK INTERMITTENT INCIDENT

Check the intermittent incident. Refer to 

GI-53, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace PDM (Power Delivery Module). Refer to 

VC-112, "Removal and Installation"

.

NO

>> Repair or replace error-detected parts.

B2820 QUICK CHARGER

VC-73

< DTC/CIRCUIT DIAGNOSIS >

D

E

F

G

H

I

J

K

L

M

A

B

VC

N

O

P

B2820 QUICK CHARGER

DTC Logic

INFOID:0000000010121256

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

1. Perform quick charging for 10 seconds or more.

2. Turn power switch ON.

3. Check “Self-diagnosis result” of “CHARGER/PD MODULE”.
Is DTC detected?

YES

>> Proceed to 

VC-73, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010121257

1.

PERFORM SELF-DIAGNOSIS OF LI-ION BATTERY CONTROLLER

With CONSULT

Perform self-diagnosis for “HV BAT”.
Is any DTC detected?

YES

>> Perform trouble diagnosis for detected DTC. Refer to 

EVB-45, "DTC Index"

.

NO

>> When this DTC detected, the cause may not be in the vehicle. Therefore after erasing the self-

diagnosis result, charge using a different quick charger than the quick charger which is used when

the malfunction is detected.

DTC

CONSULT display

(Malfunction type)

DTC detection condition

Possible causes

B2820

QUICK CHARGER
  ( — ) 

• The quick charger malfunction signal is received from 

the quick charger.

• The voltage detected by the quick charger is excessively 

higher or lower than the voltage detected by the Li-ion 
battery controller.

• The current output from the quick charger is excessively 

higher or lower than the command current.

• The current supplied to the PCS is excessively higher or 

lower than the current upper limit reading indicated by 
the vehicle.

• Quick charger
• Li-ion battery controller

(Voltage sensor system)

VC-74

< DTC/CIRCUIT DIAGNOSIS >

B2830 QUICK CHARGE VOLTAGE SENSOR

B2830 QUICK CHARGE VOLTAGE SENSOR

Description

INFOID:0000000010121258

The quick charge voltage sensor is integrated inside the PDM (Power Delivery Module), and detects the volt-

age at the + side and 

− side of the high voltage circuit on the upstream side of the quick charge relay (quick

charge port side). The PDM (Power Delivery Module) monitors the status of the quick charge relay based on

this signal.

DTC Logic

INFOID:0000000010121259

DTC DETECTION LOGIC

CAUTION:

This DTC may be detected when there is a quick charger malfunction. Therefore if this DTC is

detected, check that there are no malfunctions in the quick charger.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

1. Perform quick charging for 30 seconds or more.

2. Turn power switch ON.

3. Check “Self-diagnosis result” of “CHARGER/PD MODULE”.
Is DTC detected?

YES

>> Proceed to 

VC-74, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010121260

1.

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

With CONSULT

1. Turn power switch ON.

2. Erase DTC.

3. Turn power switch OFF.

4. Perform DTC confirmation procedure again by using a quick charger other than the one is used for the

previous DTC confirmation procedure. Refer to 

VC-74, "DTC Logic"

.

Is the DTC detected again?

YES

>> GO TO 2.

NO

>> INSPECTION END (Quick Charger malfunction).

2.

CHECK INTERMITTENT INCIDENT

Check the intermittent incident. Refer to  

GI-53, "Intermittent Incident"

.

DTC

CONSULT display

(Malfunction type)

DTC detection condition

Possible causes

B2830

QUICK CHARGE VOLT-
AGE SENSOR
(Component internal mal-
function)

• Before the start of quick charge, the high voltage circuit 

voltage that is sent from the quick charge voltage sensor 
during charging is 60 V or more continuously for 0.3 sec-
onds or more.

• During quick charging, the high voltage circuit voltage 

that is sent from the quick charge voltage sensor is less 
than 60 V continuously for 10 seconds or more.

• Before the start of quick charging, the high voltage circuit 

voltage sent from the quick charge voltage sensor is 60 
V or more continuously for 1 second or more when the 
main relay is OFF.

• After the start of quick charging, the high voltage circuit 

voltage sent from the quick charge voltage sensor is 30 
V or more continuously for 1 second or more during the 
insulation check by the quick charger.

• PDM (Power Delivery Mod-

ule)

• Quick charger